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  Crosslinking of alkylpolysiloxane films on various types of glass surfaces including fused silica using γ-radiation of a60cobalt-source. Comparison to crosslinking by thermal peroxid treatment

Schomburg, G., Husmann, H., Ruthe, S., & Herraiz, M. (1992). Crosslinking of alkylpolysiloxane films on various types of glass surfaces including fused silica using γ-radiation of a60cobalt-source. Comparison to crosslinking by thermal peroxid treatment. Chromatographia, 15, 599-610. doi:10.1007/BF02280382.

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 Creators:
Schomburg, G.1, Author           
Husmann, H.1, Author
Ruthe, S.1, Author           
Herraiz, M.1, Author
Affiliations:
1Service Department Schomburg (GC), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445628              

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Free keywords: Alkylpolysiloxanes; Capillary columns; Fused silica; Soft glass; Crosslinking by γ-radiation and peroxid treatment
 Abstract: Crosslinking of alkylpolysiloxane stationary phases, especially in thick film capillary columns, is useful for the homogenous coating of fused silica and pretreated alkaliglass surfaces. The films of the stationary liquid are immobilized against solvent rinsing using CH2Cl2, pentane, and acetone, and maintain homogenity even at high temperature. Various doses of γ-radiation from a60Co. source were used for the crosslinking instead of the thermal peroxid treatment recently described by other authors. The effect of the γ-radiation crosslinking-procedure was investigated in comparison to the peroxid method in regard of: decrease of stationary phase content by solvent rinsing, separation efficiency, tailing behaviour, and bleeding of the columns obtained. Similar results as with the cumylperoxid-treatment were achieved using the γ-radiation-method. By γ-radiation no polar functional groups or moleculs are introduced into the stationary phase, however, as with the peroxid method. Less than 20% of the various stationary liquids are usually removed from the columns by solvent rising after crosslinking using both methods depending on the doses of radiation and the cumylperoxid concentration applied respectively.

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Language(s): eng - English
 Dates: 1992-09-01
 Publication Status: Published in print
 Pages: 12
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1007/BF02280382
 Degree: -

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Title: Chromatographia
  Abbreviation : Chromatographia
Source Genre: Journal
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Publ. Info: Braunschweig, Germany [etc.] : Pergamon
Pages: - Volume / Issue: 15 Sequence Number: - Start / End Page: 599 - 610 Identifier: ISSN: 0009-5893
CoNE: https://pure.mpg.de/cone/journals/resource/954925390267